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POCan't Show image in gridview using templates
 

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    <p>i am trying to load images from the northwind database (categories table, images that are stored in the database) into grid view control. But it dosenot seems to work. Plz! have a look...</p> <p><strong>Default.aspx</strong></p> <p></p> <p> </p> <pre><code> &lt;asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False" DataKeyNames="CategoryID" DataSourceID="NorthWindSQLExpressConnectionString" EnableModelValidation="True"&gt; &lt;Columns&gt; &lt;asp:BoundField DataField="CategoryID" HeaderText="CategoryID" InsertVisible="False" ReadOnly="True" SortExpression="CategoryID" /&gt; &lt;asp:BoundField DataField="CategoryName" HeaderText="CategoryName" SortExpression="CategoryName" /&gt; &lt;asp:BoundField DataField="Description" HeaderText="Description" SortExpression="Description" /&gt; &lt;asp:TemplateField HeaderText="Picture" SortExpression="Picture"&gt; &lt;EditItemTemplate&gt; &lt;asp:TextBox ID="TextBox1" runat="server" Text='&lt;%# Bind("Picture") %&gt;'&gt;&lt;/asp:TextBox&gt; &lt;/EditItemTemplate&gt; &lt;ItemTemplate&gt; &lt;asp:Image ID="Image1" runat="server" ImageUrl='&lt;%# RetriveImage(Eval("CategoryID")) %&gt;' /&gt; &lt;/ItemTemplate&gt; &lt;/asp:TemplateField&gt; &lt;/Columns&gt; &lt;/asp:GridView&gt; &lt;asp:SqlDataSource ID="NorthWindSQLExpressConnectionString" runat="server" ConnectionString="&lt;%$ ConnectionStrings:NorthwindSQLExpressConnectionString %&gt;" SelectCommand="SELECT [CategoryID], [CategoryName], [Description], [Picture] FROM [Categories]"&gt; &lt;/asp:SqlDataSource&gt; &lt;/div&gt; &lt;/form&gt; </code></pre> <p> </p> <p><strong>[Partial] Default.aspx.cs</strong></p> <pre><code> protected string RetriveImage(object eval) { return ("ImageHandler.ashx?CategoryID=" + eval.ToString()); } </code></pre> <p><strong>[Partial] ImageHandler.ashx</strong></p> <pre><code> public void ProcessRequest(HttpContext context) { if (context.Request.QueryString == null) { } else { try { using (var sqlCon = new SqlConnection(conString)) { const string cmdString = "Select picture from Categories where CategoryID=@CategoryID"; using (var sqlCmd = new SqlCommand(cmdString, sqlCon)) { sqlCmd.Parameters.AddWithValue("@CategoryID", context.Request.QueryString["CategoryID"]); string trmp = sqlCmd.ToString(); sqlCon.Open(); using (var sqlDr = sqlCmd.ExecuteReader()) { sqlDr.Read(); context.Response.ContentType = "image/bmp"; //Added after "Ed B" Sugetion but still dosenot work :( context.Response.BinaryWrite((byte[])sqlDr["Picture"]); } } } } catch (Exception ex) { context.Response.Write(ex.Message); } } } </code></pre>
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